Waymo's driverless cars are again getting pulled over—this time for how they behave around orange cones, CNBC reports. The Alphabet-owned company is recalling nearly 3,900 robotaxis in the US to update software after 13 incidents in which the vehicles entered freeway construction zones in Phoenix and the San Francisco area, according to filings with federal regulators released Thursday. No crashes were mentioned in the filings, but Waymo acknowledged "an area of improvement" in handling freeway work zones and has already curbed freeway operations while it works on a fix. The software issue allowed autonomous vehicles to continue traveling at posted speeds after entering the closed areas, Fox Business reports.
The recall covers vehicles running Waymo's fifth-generation self-driving system and marks its second software recall in a little over a month; in May, it moved to address cars that drove into flooded areas. The company's vehicles have also drawn scrutiny for failing to properly yield to school buses and for snarling traffic during a San Francisco power outage. The National Highway Traffic Safety Administration is probing a January incident involving a stopped school bus. Waymo, which runs commercial robotaxi service in 11 US markets and plans expansions to London and Tokyo, says it continues to operate on surface streets and recently rolled out a $29.99 monthly subscription for frequent riders. News of the recall comes as other companies including Uber and Intel are planning their own robotaxi services, the Wall Street Journal reports.